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Phacus
drawing

  This drawing was made by Stuart Hedley and David Patterson Image copyright: S. Hedley and D. J. Patterson, image used under license to MBL (micro*scope).

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Phacus

From the collection Protsville drawings of freshwater protists

Description of Phacus: Euglenid, with plastids, rigid, flattened cells, most species very flat and leaf-shaped, often with ridges, folds or grooves running helically or longitudinally, giving an irregular or triradiate cross-section; many species with a long posterior spine, many twisted, flagella, eyespot and flagellar swelling as in Euglena; chloroplasts usually small, discoid, numerous, without pyrenoids; a few species (e.g. P. splendens) have large flat chloroplasts with pyrenoids; paramylon is typically deposited as a few large granules (often rings) together with many small ones; canal opening subapical; no cysts palmelloid stages rare; speciose, contemporary studies indicate that the genus is not monophyletic or holophyletic; type species: P. longicauda (Ehrenberg, 1833) Dujardin, 1841.


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    Phacus in other collections



    Phacus platalea major
    , from Freshwater and Terrestrial Microbes of Idaho (USA) and Elsewhere


    Phacus platalea major
    , from Freshwater and Terrestrial Microbes of Idaho (USA) and Elsewhere


    Phacus platalea major
    , from Freshwater and Terrestrial Microbes of Idaho (USA) and Elsewhere


    Phacus contortus
    , from Freshwater and Terrestrial Microbes of Idaho (USA) and Elsewhere


    Phacus contortus
    , from Freshwater and Terrestrial Microbes of Idaho (USA) and Elsewhere


    Phacus contortus
    , from Freshwater and Terrestrial Microbes of Idaho (USA) and Elsewhere


    Phacus contortus
    , from Freshwater and Terrestrial Microbes of Idaho (USA) and Elsewhere


    Phacus helikoides
    , from Freshwater and Terrestrial Microbes of Idaho (USA) and Elsewhere


    Phacus gamsii
    , from Freshwater and Terrestrial Microbes of Idaho (USA) and Elsewhere


    Phacus acuminatus
    , from Protozoan biomonitors in China


    Phacus agilis
    , from Protozoan biomonitors in China


    Phacus anomalus
    , from Protozoan biomonitors in China


    Phacus longicauda
    , from Protozoan biomonitors in China


    Phacus orbicularis
    , from Protozoan biomonitors in China


    Phacus oscillans
    , from Protozoan biomonitors in China


    Phacus pleuronectes
    , from Protozoan biomonitors in China


    Phacus pyrum
    , from Protozoan biomonitors in China


    Phacus tortus
    , from Protozoan biomonitors in China


    Phacus triqueter
    , from Protozoan biomonitors in China


    Hyalophacus
    , from Drawings of heterotrophic euglenids


    Phacus
    , from SML Crystal Lake


    Astrophacus apollinis
    , from Haeckel's Challenger radiolaria


    Astrophacus phacodiscus
    , from Haeckel's Challenger radiolaria


    Astrophacus solaris
    , from Haeckel's Challenger radiolaria


    Astrophacus trochiscus
    , from Haeckel's Challenger radiolaria


    Aulophacus amphidiscus
    , from Haeckel's Challenger radiolaria


    Aulophacus lenticularis
    , from Haeckel's Challenger radiolaria


    Hyalophacus ocellatus
    , from Limnic and marine Protists of Northern Germany and the Alps


    Phacus
    , from SML North Pond


    Phacus
    , from Lamont Pond, freshwater, New York


    Phacus longicaudus
    , from Freshwater and Terrestrial Microbes of Idaho (USA) and Elsewhere


    Phacus longicaudus
    , from Freshwater and Terrestrial Microbes of Idaho (USA) and Elsewhere


    Pyrophacus horologicum
    , from Alfred Wegener Institute Phytoplankton


    Pyrophacus horologicum
    , from Alfred Wegener Institute Phytoplankton


    Phacus
    , from Athens, Georgia, USA


    Phacus
    , from Lamont Pond, freshwater, New York


    Phacus suecicus
    , from Freshwater and Terrestrial Microbes of Idaho (USA) and Elsewhere


    Phacus
    , from Euglenids at Yellowstone


    Phacus agilis
    , from Freshwater euglenids - NW Australia


    Phacus monilatus
    , from Freshwater euglenids - NW Australia


    Phacus monilatus
    , from Freshwater euglenids - NW Australia


    Phacus monilatus
    , from Freshwater euglenids - NW Australia


    Phacus monilatus
    , from Freshwater euglenids - NW Australia


    Hyalophacus
    , from Cumloden, Massachusetts, USA


    Phacus
    , from Cumloden, Massachusetts, USA


    Phacus skujai
    , from Freshwater ponds of Konstanz (Germany)


    Phacus skujai
    , from Freshwater ponds of Konstanz (Germany)


    Phacus warzewieczii
    , from Freshwater ponds of Konstanz (Germany)


    Phacus warzewieczii
    , from Freshwater ponds of Konstanz (Germany)


    Phacus balatonicus
    , from Freshwater and Terrestrial Microbes of Idaho (USA) and Elsewhere


    Phacus longicaudus
    , from Freshwater and Terrestrial Microbes of Idaho (USA) and Elsewhere


    Phacus pleuronectes
    , from Freshwater and Terrestrial Microbes of Idaho (USA) and Elsewhere


    Phacus pyrum
    , from Freshwater and Terrestrial Microbes of Idaho (USA) and Elsewhere


    Phacus tortus
    , from Freshwater and Terrestrial Microbes of Idaho (USA) and Elsewhere


    Phacus pyrus
    , from Lamont Pond, freshwater, New York


    Phacus
    , from Lake Donghu, China


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